Hydroxyethylcellulose (HEC) yog cov dej-soluble polymer feem ntau siv hauv kev tsim cov gels vim nws cov thickening, stabilizing, thiab gelling zog. HEC gels yog siv rau ntau yam kev siv, suav nrog cov khoom tu tus kheej, tshuaj, thiab zaub mov. Txhawm rau tsim HEC gel, cov polymer ...
Nyeem ntxiv